On Tue, Nov 07, 2023 at 11:49:25AM -0500, Chet Ramey wrote: > On 11/7/23 8:54 AM, Mike Jonkmans wrote:
... > > > Look at https://www.austingroupbugs.net/view.php?id=854 for a discussion > > > of this issue. > > Thanks for the link, I find that very hard to read though. > It's also incomplete; there was a lot of discussion on the mailing list. > I don't have a link to a usable public mailing list archive. So the discussion is hidden. Hmm. I already did not find it much of a discussion in terms of opposition. ... > > Then again, is there a requirement for the standard utilities to be > > found in the current PATH? Or do they just need to be present somewhere. > They have to be findable using the value returned by `getconf PATH'. If > the user modifies PATH to, say, prepend directories before that standard > PATH, then all bets are off. I see. Weirdly on Ubuntu 22.04, with /bin symlinked to /usr/bin, `getconf PATH' produces `/bin:/usr/bin'. That looks like a recipe for redundant `stats'. > > > > - The 'newgrp' utility (mentioned in 1d) is not a builtin in bash. > It's gone in the latest draft of the next version of the standard anyway. Good riddance. > > > > - Utilities: > > > > https://pubs.opengroup.org/onlinepubs/9699919799/idx/utilities.html > > > > Q: Where is `standard utilities' defined - as used in 1d. > > > These are the standard utilities. > > Some of these utilities are marked with optional `codes'. > > Are these also considered standard utilities - even when the option is > > not true? > Not really, no. If the implementation claims to support, for instance, XSI, > the XSI-shaded utilities have to be present and they have to behave as > specified. If the implementation doesn't, they don't. > https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap02.html#tag_02_01_04 > > So in 1d, if the system doesn't claim XSI conformance, the shell doesn't > have to include type or ulimit in this required invocation order. > (But wait! The list of intrinsics in the latest draft includes type and > ulimit, and isn't XSI-shaded. So that will change.) Isn't that described in `Note 0004803' in https://www.austingroupbugs.net/view.php?id=854 (not possible to add shade to type and ulimit in column order) -- Regards, Mike Jonkmans
